Tire deflation warning system

Claim 1

A tire deflation detection system adapted for use in association with a vehicle having a battery, driver's compartment, and at least one pair of pneumatically inflated tires, each tire having a central hub adapted to be maintained at a fixed distance from the underlying road surface when said tire is inflated to its standard pressure, and rotatably associated in stationary relationship with a fixed support member of said vehicle, said system comprised of: (a) a mounting assembly adapted to engage said support member, and having a fixed horizontal arm and a spacer downwardly emergent from said horizontal arm and terminating in a lower extremity, (b) an activation lever disposed below said horizontal arm and having a proximal extremity pivotably associated with the lower extremity of said spacer, and a free distal extremity, said lever being constrained to pivotable travel in a vertical arc, (c) a vertically disposed post slidabbly associated with said distal extremity and having a bottom extremity equipped with means for rotationally contacting said road surface, (d) a first coil spring acting compressively to urge said post downwardly, (e) a second coil spring acting under tension to urge said lever downwardly, (f) electrical switch means associated with said horizontal arm and having a contact extremity downwardly directed toward said lever, (g) first stopping means for halting upward movement of said lever, (h) second stopping means for halting downward movement of said post, and (i) inidcator means positioned in said driver's compartment and electrically activatable by said battery when said lever places upward force against the contact extremity of said switch means.